stars
exoplanets
news
Exoplanet 2MASS J1155-7919 b
Exoplanet 2MASS J1155-7919 b orbits star 2MASS J1155-7919 that lies 329 light years away from the Sun.
It weighs about 3179.07 Earth masses and orbits its star further than Earth orbits Sun.
Sun distance
329 light years
329 light years
Loading may take a moment.
2MASS J1155-7919 b
Exoplanet, gas giant
Star: 2MASS J1155-7919
Distance from the star: 582.0 AUBasic characteristic
Mass: 3179.07 M Earth
| 10.0034 M Jupiter
Exoplanet mass
Exoplanet 2MASS J1155-7919 b has 3179.07 Earth masses (or 10.0034 Jupiter masses).
The mass of an exoplanet is one of the most important characteristics for understanding what kind of world it is — whether it’s small and rocky like Earth or large and gaseous like Jupiter. Mass provides key information about the planet’s composition, gravity, and formation history...
More about Exoplanet mass in StellarGuide
Year of discovery: 2020 (astrometry)
Other designations of this exoplanet
2MASS J1155-7919 b
2MASS J1155-7919 b
Advertisement
2MASS J1155-7919 system structure
Exoplanet 2MASS J1155-7919 b orbits star 2MASS J1155-7919, which has much lower mass than Sun. It is the only known exoplanet orbiting this star
|
|
2MASS J1155-7919 | ||||||||
| 2MASS J1155-7919 b | 582 AU | 3179.1 M⊕ | - | ||||||
Comparison
When comparing to the Solar system planets, 2MASS J1155-7919 b has 10 times the mass of Jupiter and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 57801.27 | 3900.7 | 3179.07 | 28900.64 | 10 | 33.39 | 217.74 | 184.83 |
|
Distance | 1492.31 | 804.98 | 582 | 381.89 | 111.86 | 61.01 | 30.34 | 19.36 |
Habitability
Habitable zone of the star: 0.34 - 0.49 AU
The planet is too cold to sustain liquid water on its surface. It is however possible that there is environment with higher temperatures on some of its potential moons.
The planet is probably a gas giant and has no surface, however life could still be possible on the potential moons orbiting it.